Repeated Dribbling Ability in Young Soccer Players: Reproducibility and Variation by the Competitive Level
| Autor: | Óscar M. Tavares, Manuel J. Coelho-e-Silva, Sean P. Cumming, Vítor Severino, Susana Póvoas, João P. Duarte, João R. Pereira, Alexis Ahmed, Ricardo Rebelo-Gonçalves, Vasco Vaz, João Valente-dos-Santos, André Seabra |
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| Rok vydání: | 2016 |
| Předmět: |
Reproducibility
reliability Intraclass correlation Coefficient of variation Construct validity 030209 endocrinology & metabolism Physical Therapy Sports Therapy and Rehabilitation 030229 sport sciences intra-class correlation short-term maximal effort 03 medical and health sciences Biological maturation 0302 clinical medicine Sprint Physiology (medical) Independent samples Statistics Section III - Sports Training lcsh:Sports medicine lcsh:RC1200-1245 Simulation Mathematics |
| Zdroj: | Journal of Human Kinetics, Vol 53, Iss 1, Pp 155-166 (2016) Journal of Human Kinetics |
| ISSN: | 1899-7562 |
| Popis: | The intermittent nature of match performance in youth soccer supports relevance of ability to repeatedly produce high-intensity actions with short recovery periods. This study was aimed to examine the reproducibility of a repeated dribbling ability protocol and, additionally, to estimate the contribution of concurrent tests to explain inter-individual variability in repeated dribbling output. The total sample comprised 98 players who were assessed as two independent samples: 31 players were assessed twice to examine reliability of the protocol; and 67 juveniles aged 16.1 ± 0.6 years were compared by the competitive level (local, n = 34; national, n = 33) to examine construct validity. All single measurements appeared to be reasonably reliable: total (ICC = 0.924; 95%CI: 0.841 to 0.963); ideal (ICC = 0.913; 95%CI: 0.820 to 0.958); worst (ICC = 0.813; 95%CI: 0.611 to 0.910). In addition, the percentage of the coefficient of variation was below the critical value of 5% for total (%CV = 3.84; TEM = 2.51 s); ideal (%CV = 3.90, TEM = 2.48 s). Comparisons between local and national players suggested magnitude effects as follows: moderate (d-value ranged from 0.63 to 0.89) for all repeated sprint ability scores; large for total (d = 1.87), ideal (d = 1.72), worst (d = 1.28) and moderate for composite scores: the fatigue index (d = 0.69) and the decrement score (d = 0.67). In summary, the dribbling protocol presented reasonable reproducibility properties and output extracted from the protocol seemed to be independent from biological maturation. |
| Databáze: | OpenAIRE |
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